Rising hinge



APPLICATION FILED JAN. 19, 1920.

efieheaama Patented Jan. 11, 1921.

E 2 SHEETSSHEET L FIG.

A. E. HELEY AND T. W. AITKEN.

RISING HINGE.

APPLICAHON FILED JAN. 9, 1920.

Patented Jan. 11, 1921.

2 SHEETS-SHEET 2.

M has ALBERT ED'W'ARD [1ND 'Zlil flllii WILL "l AEITKEIQ', {1F LUTON, ENGLAND.

RISING HINGE.

Application filed January W T all whom may concern:

Be it known that we, Anemia: llowixno Hunter, a subyect of the king of Great Britain and ireland, residlng at laiillegiheld street, Lu'ton, in the county Bedford, England, and 'llrzorus Vl LLLIAM Air nun, sub ect oi? the King of Great Britain and Ireland, residing at North Street l Vorks.

Luton, as aforesaid, have invented new and useful Improvements in Rising Hinges, oi?

which the following is a specification.

This invention relates to what are known as rising hinges; that is to say, hinges wherein the part attached to the door or gate rises in relation to that attached to the door or gate-post during the opening of the door or gate, with the object, in some instances, of lifting the door sufficiently to clear a carpet, and in any case, of eliecting the automatic reclosing of the door or gate under the influence of gravity. Ii, in order to accomplish the latter object, the extent of lift be considerable, difliculty arises with the top of the door-frame while the door is still housed therewithin. Our invention is designed to avoid or modify this diiliculty; the requisite closing influence being obtained with a substantially reduced lift; such reduction in lift being permissible by reason of diminution in friction.

Means for carrying our invention into effect are illustrated'in the accompanying drawings, whereof Figure 1 shows a gate with our improved rising hinge applied thereto; F 2 being a side elevation of the device, F 3 a plan View, Fig. 4 a vertical section with the upper member raised and Fig. 5 a plan view, the upper member having been'reinoved. The application or" our invention to a door is illustrated in Fig. 6; Fig. 7 being a vertical section and Fig. 8 a plan view thereof.

teferring to Figs. 2 to 5, the device con sists of two principal parts; a. lower part a which .may be mounted on the sill or other foundation or formed for attachment to the gate-post and an upper part b which carries the gate-stile. The upper or working surface of the part a is formed as segments of at least three screw-threads so as to afford a three-point or balanced support; the spiral races thus constituted being terminated by radial cross-ribs c and each such spiral race is furnished with an anti-friction ball d; the cross-ribs a serving as stops to confine each of the balls d to its own spiral Specification of Letters Patent.

Patented J an. it, 1921.

Serial No.

race or segment. ltadially central in the floor of each of the said spiral "aces a shallow groove may be formed for t is ball to run in, but we do not regard this as essential. The under surface at the part Z; is in like manner formed as segments of a corresponding multiple thread. Assuming the working surface of the part a to be divided into three segments furnished with three balls, as in the present example, the gate may be opened to an angle of about 140; each ball having thereupon rolled a dis tance which to some extent depends upon its diameter, and reached the upper extremity of the segment it occupies. e is a rectangular socket in which the similarly formed heel of the gate-stile f may be inserted.

Figs. 6, 7 and 8, illustrate the application of our invention to an ordinary door. a is the lower member, h the upper member, formed with an upward projection which engages in a hole 6 formed in a plate 9 secured to the post of the door It. The rising effect may be accomplished by means of the character already described with reference to Figs. 1 to 5; but the said means may, if desired, be duplicated, as shown in Fig. 7. Under such conditions there is introduced an intermediate member whereof both the upper and the lower surfaces, as also those of their opposed working sur faces, are formed as spiral segments, with the effect that the angle to which the door may be opened is doubled or largely increased, inasmuch as when one set of ballfurnished inclines has reached the limit of its angular movement, the second set of balli'urnished inclines comes into operation, and further angular movement of the door is permissible.

Similarly, by making the intermediate member with its lower working face to suit the upper face of the bottom member. and

its upper working face with inclines in the reverse direction, the under face of the top member being correspondingly formed, the gate or door is rendered capable of being swung in either direction, and will then automatically resume its normal or closed position.

1. A gravitating hinge consisting of upper and lower parts whereof the opposed portions are formed of a plurality of inclined surfaces and have anti-friction balls nated by cross-ribs which serve to restrict the rolling movements of the said balls.

3. A gravitating hinge wherein the means defined in the first claim are duplicated and the inclination of the surfaces between the bottom and the intermediate part is in the reverse direction to that of the surfaces between the latter and the top part: the gate or door being thereby rendered capable of partaking of an angular movement in either direction.

ALBERT EDWVARD HELEY. THOMAS VILLIAM AITKEN. 

